Bump unhead and @unhead/vue

Bumps [unhead](https://github.com/unjs/unhead/tree/HEAD/packages/unhead) to 2.1.12 and updates ancestor dependency [@unhead/vue](https://github.com/unjs/unhead/tree/HEAD/packages/vue). These dependencies need to be updated together.


Updates `unhead` from 2.0.19 to 2.1.12
- [Release notes](https://github.com/unjs/unhead/releases)
- [Commits](https://github.com/unjs/unhead/commits/v2.1.12/packages/unhead)

Updates `@unhead/vue` from 2.0.19 to 2.1.12
- [Release notes](https://github.com/unjs/unhead/releases)
- [Commits](https://github.com/unjs/unhead/commits/v2.1.12/packages/vue)

---
updated-dependencies:
- dependency-name: unhead
  dependency-version: 2.1.12
  dependency-type: indirect
- dependency-name: "@unhead/vue"
  dependency-version: 2.1.12
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "@posthog/nuxt": "^1.5.84",
     "@sentry/nuxt": "^10.27.0",
     "@tanstack/vue-query": "^5.91.4",
-    "@unhead/vue": "^2.0.10",
+    "@unhead/vue": "^2.1.12",
     "@vite-pwa/nuxt": "^1.0.4",
     "@vueuse/nuxt": "^13.0.0",
     "@wagmi/core": "3.0.0",